While “L/W” means length-to-width, an L/W ratio is the actual mathematical figure required to cut gemstones into popular designs.
What is LW ratio?
L-W Ratio. L-W RATIO. Length-to-Width Ratio –The length-to-width ratio compares the length of a diamond to its width to show how elongated a fancy-shaped diamond appears when viewed from the top.
What do the letters on jewelry mean?
Each number stands for the percentage of purity of gold, platinum, and silver. For gold, the stamps are 375, 585, 750, 916, 990 and 999. For silver, the stamps are 800,925,958 and 999. For platinum, the stamps are 850, 900, 950 and 999.
What do the letters on gold jewelry mean?
Purity marks on gold jewelry will consist of a two-digit number followed by the letter “k,” or a three-digit number. … A piece of jewelry with an etching that reads “18k” or “750” indicates that it is made up of 75 percent gold, while a “14k” or “585” mark indicates the metal is constructed with 58.5 percent gold.
What does NPT stand for on jewelry?
NPT (or National Pipe Taper) is a U.S. standard for tapered threads widely used on pipes and fittings for over 100 years.
What is the best LW ratio in a diamond?
The length-to-width ratio (L/W) in a pear-shaped diamond is largely a matter of personal preference. However, most people prefer a ratio of 1.45 to 1.75.
How do you calculate LW?
To calculate the L/W ratio just divide the length of the diamond by its width. For e.g. a pear shaped diamond with a length of 7.5 mm and a width of 5.0 mm will have 1.50: 1 length-to-width ratio.
What does P mean on jewelry?
In the context of gold jewelry, “plumb” is an old-fashioned term that means that the fineness or purity level of the gold content is precisely what is stamped on the item. The word “Plumb” or the letter P still sometimes follows the metal stamp (e.g., “14k Plumb,” “14KP”).
What does KK mean on jewelry?
The initials, “KK” on the gold bracelet clasp are the initials of the firm or the individual who registered the mark.
How do I identify my jewelry markings?
The most common hallmark is meant to tell you an item’s precious metal purity. The first thing you want to look for is the shape of the stamp. A rectangular shape with the corners shaved off will tell you immediately that the item is gold. An oval stamp would indicate the item is silver.
What does 88 mean on a gold ring?
It is a 14 k gold ring and the diamond has 88 Facets as opposed to the normal 58 facets. The Eighty-Eight is a branded and patented diamond featuring 8 sides that form an octagon and 88 facets, 30 more than the traditional round brilliant cut.
Is real gold always stamped?
Nearly all real gold is stamped with a hallmark that notes the karat weight of the jewelry, like 10K or 14K. … 999″ or “1.000” would be pure gold and thus the same as 24 karat. Nonetheless, if an item of jewelry does not have this stamp – it is not necessarily proof positive that the item is made from fake gold.
How do you use NPT gauge?
N.P.T. (National Taper Pipe)
To gage Internal N.P.T. taper pipe threads, screw the N.P.T. thread plug firmly into the product – do not force. The thread is within the permissible tolerance when the gaging notch of the plug is not more than one turn plus or minus from being flush with the end of the product.
Is NRT real jewelry?
This company is known for making jewelry using quality Austrian crystal rhinestones in designs ranging from dainty and feminine to flashy and complex. We hope that you have found all the necessary information about What Does Nrt Mean On Jewelry using the links above.